.icon {
    width: 1em;
    height: 1em;
    vertical-align: middle;
    fill: currentColor;
    overflow: hidden;
    color: #9b9a9a;
  }
  .background{
    background-color: rgb(243, 242, 242);
    height: 700px;
  }
  .warp{
    width: 96%;
    margin: 0 auto;
    height: 100%;
  }
  /*目录栏开始*/
  /*目录栏开始(1)*/
.white-nav{
    width: 100%;
    background-color: #fff;
}
.txt{
    border-bottom: solid;
    border-bottom-color: rgb(240, 238, 238);
    position: relative;
    height: 40px;
}
.title{
  position: absolute;
  left: 3%;
}
.reply{
  position:absolute;
  right: 3%;
  border: 2px solid;
  border-color: #4D58B5;
  color: #4D58B5;
  border-radius: 25%;
  background-color: #fff;
  font-size: 18px;
}
.reply:hover{
  background-color: #4D58B5;
  color: #fff;
}
  /*目录栏结束(1)*/
  /*目录栏开始(2)*/
.teacher-information{
  position: relative;
  height: 75px;
}
.informantion-left{
  position: relative;
  left: 3%;
  overflow: hidden;
  clear: both;
}
.informantion-right{
  position: absolute;
  right: 4.5%;
}
.informantion-left li{
  float: left;
  position: relative;
  margin: 0 3.6px;
}
.teacher-name{
  color: #9b9a9a;
  padding: 0 5px;
}
.teacher{
  border:1.5px solid;
  border-color: rgb(247, 198, 139);
  border-radius: 35%;
  color: rgb(247, 198, 139);
  padding: 0 5px;
}
.time{
  color: #9b9a9a;
  padding: 0 5px;
}
.netaddress{
  position: absolute;
  left: 3%;
  margin-top: 10px;
}
  /*目录栏结束(2)*/
  /*目录栏结束*/
  /*回复栏开始*/
  .reply-nav{
    width: 100%;
    background-color: #fff;
    margin-top: 10px;
    position: relative;
    height: 150px;
  }
  .reply-number{
    position: absolute;
    left: 3%;
  }
  .number{
    font-weight: bold;
    font-style: normal;
    color: black;
  }
  .number-text{
    color: #9b9a9a;
  }
  .content{
    position: relative;
  }
  .content-left1{
    position: absolute;
    left: 6%;
    margin-top: 50px;
  }
  .content-left1 li{
    float: left;
    margin: 0 3.6px;
  }
.editer{
  color: #9b9a9a;
}
.class{
  color:#9b9a9a;
}
.content-left2{
  position: absolute;
  left: 7.5%;
  margin-top: 80px;
}
.content-left2 li{
  float: left;
  margin: 0 3.6px;
}
.content-left2 li p{
  font-size: 12px;
  color: #9b9a9a;
}
.context-right{
  position: absolute;
  right: 3.5%;
  margin-top: 50px;
}
.context-right li{
  float: left;
  margin: 0 16px;
}
.content-txt{
  position: absolute;
  left: 8%;
  margin-top: 115px;
  color: black;
}
  /*回复栏结束*/
  /*回答窗开始*/
  .answer{
    width: 100%;
    background-color: #fff;
    margin-top: 10px;
    position: relative;
    height: 270px;
  }
  .answer-title{
    position: absolute;
    left: 3%;
  }
  .textarea{
    height: 160px;
    width: 1380px;
    resize: none;
    position: absolute;
    left: 3%;
    margin-top: 50px;
    border-radius: 0.5%;
    border-color: #9b9a9a;
  }
  .user-reply{
    position:absolute;
    right: 3%;
    border: 2px solid;
    background-color: #4D58B5;
    color: #fff;
    border-radius: 25%;
    font-size: 18px;
    margin-top: 230px;
  }
  /*回答窗结束*/